Folding frame for signs



FIG. 1 is a front elevational view of a folding frame for signs showingmy new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a side elevational view thereof, with the opposite side beinga mirror image.

The ornamental design for a folding frame for signs, as shown anddescribed.